CN211131296U

CN211131296U - System for facilitating delivery of instruments through a peripheral intravenous catheter

Info

Publication number: CN211131296U
Application number: CN201921124858.3U
Authority: CN
Inventors: 胡秋霞; 马亦平; C·H·布兰查德; J·K·博科豪兹
Original assignee: Becton Dickinson and Co
Current assignee: Becton Dickinson and Co
Priority date: 2018-07-17
Filing date: 2019-07-17
Publication date: 2020-07-31
Anticipated expiration: 2029-07-17
Also published as: EP3823712A1; US11534591B2; MX2021000513A; JP2021531112A; SG11202100400SA; JP7449918B2; BR112021000677A2; US20200023176A1; KR20210032997A; CA3106362A1; US20230099120A1; AU2019307508A1; WO2020018497A1

Abstract

A system for facilitating delivery of an instrument through a peripheral intravenous catheter, wherein the system comprises: a catheter adapter having a proximal end, a distal end, and a lumen extending therethrough, the catheter adapter having a side port; an extension tube extending from the side port; a blood control valve disposed in the lumen of the catheter adapter; and a peripheral intravenous catheter extending distally from the catheter adapter. Through the technical scheme of the utility model reduced the misery that brings the patient because extra acupuncture when gathering blood sample, prolonged the life-span of PIVC and allowed to carry out fluid infusion and/or blood extraction through the PIVC subassembly, in addition, can use the apparatus transmission device to come the transmission of other pipe through the PIVC.

Description

System for facilitating delivery of instruments through a peripheral intravenous catheter

RELATED APPLICATIONS

The present application claims the benefit of U.S. application No. 62/699,520 entitled "system and method FOR facilitating device delivery THROUGH a peripheral intravenous CATHETER" filed on 7/17/2018 (SYSTEMS AND METHODS FOR FACI L identifying entering into system tde L FOR use with a method FOR delivering a device THROUGH a peripheral intravenous CATHETER (A PERIPHERA L INTRA VENOUS CATHETER), which is incorporated herein in its entirety.

Technical Field

Catheters are commonly used for a variety of infusion therapies. For example, catheters may be used to infuse fluids (such as saline solutions, various medications, and total parenteral nutrition) into a patient. Catheters may also be used to draw blood from a patient.

Background

A common type of catheter is a peripheral intravenous over needle catheter ("PIVC"). As the name suggests, an on-needle PIVC may be mounted on an introducer needle having a sharp distal tip. The PIVC and introducer needle may be assembled such that the distal tip of the introducer needle extends beyond the distal tip of the PIVC with the bevel of the needle facing up away from the patient's skin. PIVC and introducer needles are typically inserted through the skin at a shallow angle into the patient's vasculature.

To verify proper placement of the introducer needle and/or PIVC in the blood vessel, the user typically confirms that there is "flashback" of blood in the flashback chamber of the PIVC assembly. Once needle placement is confirmed, the user can temporarily occlude flow in the vasculature and remove the introducer needle, leaving the PIVC in place for future blood draws and/or fluid infusions.

Currently, there may be some limitations to using PIVCs for fluid infusion and blood withdrawal. PIVCs can narrow, collapse, or jam over time, causing the PIVC to fail. Because of this, PIVCs can generally be used to obtain blood samples when the PIVC is placed, but they are less used to obtain blood samples during PIVC dwell times. Thus, when a blood sample is required, additional needle sticks may be used to provide venous access for blood collection, which may be painful for the patient. To extend the life of the PIVC and permit fluid infusion and/or blood withdrawal through the PIVC assembly, in some instances, an instrument delivery device may be used to deliver additional catheters through the PIVC.

In current integrated catheter systems with integrated extension tubes (e.g., BD (becton dickinson) NEXIVA^TMClosed IV catheter System, BD NEXIVA^TMDIFFUSICS^TMClosed IV catheter System, Becton Dickinson (Becton Dickinson) PEGASUS^TMA safe, closed IV catheter system, or other integrated catheter system), it may be difficult to deliver additional catheters through the PIVC. In further detail, it may be difficult to advance additional catheters through a length of integrated extension tubing and/or through a septum disposed in the lumen of a catheter adapter of the system in order to place additional catheters within or outside of the PIVC.

The subject matter claimed herein is not limited to embodiments that solve any disadvantages or that operate only in environments such as those described above. Rather, this background is provided merely to illustrate one exemplary area of technology in which certain embodiments described herein may be practiced.

Through the technical scheme of the utility model, reduced the misery that brings the patient because extra acupuncture when gathering blood sample, prolonged the life-span of PIVC and allowed to carry out fluid infusion and/or blood extraction through the PIVC subassembly, in addition, can use the apparatus transmission device to come the transmission of other pipe through the PIVC.

SUMMERY OF THE UTILITY MODEL

The present invention relates generally to devices, systems, and methods for facilitating instrument delivery through a PIVC. In certain embodiments, the apparatus may comprise additional catheters for fluid infusion or blood withdrawal, guide wires, probes with sensors, or light tubes for sterilization. In certain embodiments, a system for facilitating device delivery through a PIVC can comprise a catheter adapter that can comprise a proximal end, a distal end, and a lumen extending therethrough. In certain embodiments, a PIVC may extend distally from the catheter adapter. In certain embodiments, the catheter adapter may comprise a side port. In certain embodiments, an extension tube may extend from the side port. In some embodiments, a blood control valve may be disposed in the lumen of the catheter adapter.

In certain embodiments, the blood control valve may be disposed proximal to the side port. In these and other embodiments, the blood control valve may not permit venting. In certain embodiments, the blood control valve may be disposed distal to the side port. In these and other embodiments, the blood control valve may allow for ventilation.

In certain embodiments, the system may include a Y-adapter coupled to a proximal end of the extension tube. In certain embodiments, the Y-adapter may include a first port and a second port. In certain embodiments, a needleless connector may be coupled to the first port and a needleless connector may be coupled to the second port. In these and other embodiments, the blood control valve may allow for venting, which may facilitate the user's observation of blood flashback.

In certain embodiments, the system may include a cap that may be coupled to the proximal end of the catheter adapter. In certain embodiments, the system may include a needleless connector coupled to a proximal end of the catheter adapter.

In certain embodiments, the proximal end of the catheter adapter may comprise a luer adapter or a non-luer adapter. In certain embodiments, an extension device may be coupled to the proximal end of the catheter adapter. In certain embodiments, the extension device may include a distal connector coupled to the proximal end of the catheter adapter, and a proximal connector. In certain embodiments, the extension device may include tubing disposed between the distal connector and the proximal connector. In certain embodiments, the proximal connector may comprise a needleless connector.

In certain embodiments, the distal connector may include a cannula that passes through the blood control valve in response to the distal connector being coupled to the proximal end of the catheter adapter. In some embodiments, the cannula may be blunt. In certain embodiments, the cannula may be constructed of plastic or metal (such as, for example, steel).

In certain embodiments, the distal connector may comprise a male luer connector, which may provide a fluid-tight seal. In certain embodiments, the male luer connector may include an extension that may pass through the blood control valve in response to the distal connector being coupled to the proximal end of the catheter adapter. In certain embodiments, the extension and/or cannula may contain one or more irrigation windows. In certain embodiments, the cannula and extension may each correspond to an actuator of the blood control valve. In certain embodiments, the lumen of the catheter adapter may not contain an actuator for the blood control valve other than the cannula or extension.

In certain embodiments, the system may include an instrument delivery device that may be coupled to the proximal end of the catheter adapter. In certain embodiments, the instrument delivery device may comprise an instrument that may be configured to be advanced distally through the blood control valve and PIVC. In some embodiments, a distal portion of the lumen of the catheter adapter can be narrowed to provide a guide feature for the instrument as it is advanced distally.

In certain embodiments, the system may include a needle assembly removably coupled to the proximal end of the catheter adapter. In some embodiments, the introducer needle of the needle assembly may extend through the blood control valve.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed. It is to be understood that the various embodiments are not limited to the arrangements and instrumentality shown in the drawings. It is also to be understood that these embodiments may be combined, or that other embodiments may be utilized, and structural changes may be made without departing from the scope of the various embodiments of the present invention, unless such claims as exist. The following detailed description is, therefore, not to be taken in a limiting sense.

Drawings

Exemplary embodiments will be described and explained with additional specificity and detail through the use of the accompanying drawings in which:

fig. 1A is a perspective view from above of an exemplary catheter system showing an exemplary needle assembly coupled to a proximal end of the exemplary catheter assembly, in accordance with certain embodiments;

FIG. 1B is an exploded view of a needle assembly and a catheter assembly according to certain embodiments;

fig. 1C is a cross-sectional view of a catheter assembly showing an example blood control valve disposed proximal to an example side port, according to some embodiments;

FIG. 1D is another cross-sectional view of a catheter assembly according to certain embodiments, showing a blood control valve disposed distal to the side port;

fig. 1E is a perspective view from above of an exemplary needleless connector coupled to a proximal end of the catheter assembly, in accordance with certain embodiments;

fig. 2A is a perspective view from above of an exemplary extension device coupled to a proximal end of the catheter assembly, according to some embodiments;

FIG. 2B is a perspective view from above of an exemplary instrument transfer device coupled to an extension device;

fig. 2C is a cross-sectional view of an exemplary distal connector of an extension device coupled to a proximal end of the catheter assembly, according to some embodiments;

fig. 2D is a cross-sectional view of another exemplary distal connector of an extension device coupled to a proximal end of the catheter assembly, in accordance with certain embodiments;

fig. 2E illustrates an example actuator before the distal connector is coupled to the proximal end of the catheter assembly, according to some embodiments; and

fig. 2F illustrates an actuator penetrating the blood control valve, according to some embodiments.

Detailed Description

The present invention relates generally to devices, systems, and methods for facilitating instrument delivery through a PIVC. In certain embodiments, the apparatus may comprise additional catheters for fluid infusion or blood withdrawal, guide wires, probes with sensors, or light tubes for sterilization.

Referring now to fig. 1A, in certain embodiments, a system 10 for facilitating instrument delivery through a PIVC14 may comprise: a catheter adapter 12; a PIVC14 extending distally from the catheter adapter 12; and an extension tube 16 extending from the catheter adapter 12. In certain embodiments, the catheter adapter 12 may include a side port 18. In certain embodiments, the extension tube 16 may extend from the side port 18. In certain embodiments, the catheter adapter 12 may comprise a proximal end 20 and a distal end 22.

In certain embodiments, system 10 may include a Y-adapter 24, which may include a distal end 26, a first port 28, and a second port 30. In certain embodiments, the distal end 26 of the Y-adapter 24 may be coupled to the extension tube 16. In certain embodiments, the extension tube 16 may include a clamp 17 that may selectively close the extension tube 16 to prevent blood or another fluid from flowing through the extension tube 16.

In certain embodiments, the system 10 may be integrated, with an integrated extension pipe 16. In other embodiments, the system 10 may be non-integrated. In certain embodiments, the system 10 may include a needle assembly, which may include a needle hub 34 and an introducer needle 36. In certain embodiments, in response to the introducer needle 36 being inserted into a patient's vein, blood flashback may flow through the sharp distal tip 38 of the introducer needle 36 and from the distal notch of the introducer needle 36 into a portion of the system 10. For example, blood flashback may flow through the distal tip 38 and from the distal notch into the space between the outer surface of the introducer needle 36 and the inner surface of the PIVC14 (this may be referred to as "primary flashback"). In certain embodiments, blood flashback may flow into the extension tube 16 (this may be referred to as "secondary flashback"). The primary blood flashback and/or the secondary blood flashback may confirm that introducer needle 36 and/or distal tip 48 of PIVC14 are located within the patient's vein. In certain embodiments, the needle assembly may be removably coupled to the proximal end 20 of the catheter adapter 12. In some embodiments, the introducer needle 36 of the needle assembly may extend through the blood control valve 44.

In certain embodiments, a first needleless connector 40a may be coupled to the first port 28, and/or a second needleless connector 40b may be coupled to the second port 30. in these and other embodiments, a blood control SEPTUM or valve disposed within the lumen 46 of the catheter adapter 12 may permit venting.certain non-limiting examples of needleless connectors are described in U.S. patent No. 8,066,670 entitled "vascular access device SEPTUM VENTING" (VASCU L AR ACCESS DEVICE SEPTUM VENTING), filed on 5.11.2007, which is incorporated herein by reference. in certain embodiments, the system 10 may not include a vent plug. in certain embodiments, the system 10 may include a vent plug. in certain embodiments, the vent plug may be coupled to one of the first port 28 and the second port 30, and a particular needleless connector may be coupled to the other of the first port 28 and the second port 30. in certain embodiments, the system 10 may be preassembled as shown in FIG. 1A, such that the system 10 shown in FIG. 1A may be removed from packaging by a user.

Referring now to fig. 1A-1B, in certain embodiments, the needle assembly may not include a safety mechanism. In certain embodiments, the needle assembly may incorporate a safety mechanism (not shown) that may shield the sharp distal tip 38 of the introducer needle 36 in response to the needle assembly being removed from the system 10. The safety mechanism may comprise any safety mechanism configured to shield the sharp distal tip 38.

The safety mechanism may be coupled to the catheter adapter 12 in a number of ways. In certain embodiments, the safety mechanism may comprise a spring mechanism. In some embodiments, the security mechanism may be similar to BD INSYTE^TMAUTOGUARD^TMMounting of BC shielded IV catheterU.S. patent No. 8,496,623 entitled "two-way catheter FEATURE CAPTURE MECHANISM" (BI-direction catheter FEATURE CAPTURE MECHANISM) (BI-direction catheter L CANNU L) filed on 3/11/2013, U.S. patent application No. 62/314,262 entitled "two-way catheter FEATURE CAPTURE MECHANISM" (a catheter L a clamp MECHANISM), filed on 3/28/3, provides a non-limiting example of a safety MECHANISM including an internal interlock, which patent application is incorporated by reference in its entirety in U.S. patent application No. 2016, hereby incorporated by reference in its entirety in certain embodiments, the safety MECHANISM is incorporated by reference in U.S. patent application No. 2016, 1998, which patent application is incorporated by reference in its entirety in U.S. patent application No. 2016, which patent application is entitled "safety catheter FEATURE CAPTURE MECHANISM" (b) (b-direction catheter FEATURE CAPTURE MECHANISM) (b 3/2A) filed on 3/2/3/11.

In certain embodiments, the safety mechanism may comprise an external interlock, wherein the safety mechanism is coupled to an outer surface of the catheter adapter 12. in certain embodiments, the safety mechanism may be coupled to an outer surface of the catheter adapter and an inner and/or outer surface of the hub 34. the coupling may comprise threads, mating, snapping, connecting, attaching, fastening, clipping, hooking, or any other suitable coupling means.A non-limiting example of a safety mechanism comprising an external interlock is provided in U.S. patent application No. 14/295,953 entitled "PORTED IV catheter with outer needle shield and internal blood control SEPTUM" (TED IV CATHETER HAVING EXTERNA L NEED L E SHIE 630D ANDINTERNA L B L OOD CONTRO L SEPTUM) filed 6.4.2014.A non-limiting example of a safety mechanism comprising an external interlock is provided, which is incorporated herein by reference in its entirety. in certain embodiments, the safety mechanism may comprise a V clamp or similar clamp, which is filed 6.4.2014.A non-limiting example of the US needle shield mounted IV catheter L, which is incorporated herein by reference, the non-limiting example of the US patent application Ser. No. 4625,7373,539 2,6853.

Referring now to fig. 1C, in certain embodiments, a blood control septum or valve 44 may be disposed within the lumen 46 of the catheter adapter 12. In certain embodiments, the blood control valve 44 may be single-use or multi-use. In certain embodiments, the blood control valve 44 may provide a physical barrier to control the flow of blood and other fluids between the distal and

proximal chambers

50, 52 of the catheter adapter 12. For example, when distal tip 38 of introducer needle 36 and distal tip 48 of PIVC14 are inserted into a patient's vein and introducer needle 36 is removed, blood from the patient may flow through PIVC14 and into distal chamber 50, but may be prevented from bypassing blood control valve 44. In certain embodiments, the blood control valve 44 may be secured within the lumen 46 of the catheter adapter 12 in a number of ways, including, for example, using an annular groove, adhesive, plastic welding, retaining clips, mechanical connections, and the like.

In certain embodiments, blood control valve 44 may comprise any structural configuration capable of dividing lumen 46 into a distal chamber 50 and a forward chamber 52. In certain embodiments, the blood control valve 44 may comprise a membrane. In certain embodiments, the blood control valve 44 may comprise a disk. In certain embodiments, the blood control valve 44 may include one or more slits that form a path through the blood control valve 44. In certain embodiments, the blood control valve 44 may be constructed of a flexible and resilient material.

In certain embodiments, the blood control valve 44 may differ from the septum of one or more of the following catheter systems in one or more ways: BD NEXIVA^TMA closed IV catheter system; BD CATHENA^TMCatheter system, and BDINSYTE^TMAUTOGUARD^TMBC shielded IV catheter. In BD NEXIVA^TMIn a closed IV catheter system, the septum may include a distal component having a first barrier against blood flow and a proximal component having a second barrier against blood flow. BD NEXIVA^TMThe septum of the closed IV catheter system may be disposed within the barrel and/or be constructed of polyisoprene.

In certain embodiments, the blood control valve 44 may be disposed proximal to the side port 18. In further detail, in certain embodiments, the blood control valve 44 may be disposed proximal to the opening of the side port 18 into the lumen 46. In these and other embodiments, the blood control valve 44 may not permit venting such that air is not allowed to pass between the distal chamber 50 and the proximal chamber 52, which may prevent blood and/or priming fluid from leaking.

In certain embodiments, the blood control valve 44 may allow venting, which may facilitate the user's observation of blood flashback. In certain embodiments, the blood control valve 44 may allow venting in a number of ways. For example, the outer surface of the blood control valve 44 may contain one or more grooves that are permeable to air but impermeable to liquid. As another example, the interior surface of catheter adapter 12 disposed along the length of blood control valve 44 may contain one or more grooves that are permeable to air and impermeable to liquid. In these embodiments, the blood control valve 44 may be fluid impermeable when in the closed position.

In some embodiments, a distal portion of the lumen 46 of the catheter adapter 12 may be narrowed to provide a guide feature 51 for the instrument as it is advanced distally.

Referring now to fig. 1D, in certain embodiments, a blood control valve 44 may be disposed distal to the side port 18. In further detail, in certain embodiments, the blood control valve 44 may be disposed distal to the opening of the side port 18 into the lumen 46. In these and other embodiments, the blood control valve 44 may allow for ventilation.

Referring now to fig. 1C-1D, in certain embodiments, the system 10 may include a cap 54 that may be coupled to the proximal end 20 of the catheter adapter 12 to seal the proximal end 20 of the catheter adapter 12 from air and liquid.

Referring now to fig. 1E, in certain embodiments, the system 10 may include a needleless connector 40 coupled to the proximal end 20 of the catheter adapter 12.

Referring now to fig. 2A, in certain embodiments, an extension device 56 may be coupled to the proximal end 20 of the catheter adapter 12. In certain embodiments, the proximal end 20 of the catheter adapter 12 may comprise a luer adapter, such as a male or female luer adapter of the slip or screw type, or a non-luer adapter. In certain embodiments, the extension device 56 may include a distal connector 58 coupled to the proximal end 20 of the catheter adapter, and a proximal connector 60.

In certain embodiments, the extension device 56 may include tubing 62 disposed between the distal connector 58 and the proximal connector 60. In certain embodiments, the tubing 62 may include a clamp 17. In certain embodiments, a distal end of the tubing 62 may be secured within the distal connector 58 and a proximal end of the tubing 62 may be secured within the proximal connector 60. In certain embodiments, proximal connector 60 may comprise needleless connector 40. In certain embodiments, the distal connector 58 and/or the proximal connector 60 may comprise a luer adapter, such as, for example, a male or female luer adapter, either of the slip or screw type, or a non-luer adapter.

In certain embodiments, the tubing 62 may be rigid, semi-rigid, or flexible. In certain embodiments, one or more of the following may form a straight or nearly straight path for delivering an instrument to PIVC 14: the PIVC14, the catheter adapter 12, the distal connector 58, the proximal connector 60, and the tubing 62. In some embodiments, the straight or nearly straight path may be smooth to prevent the instrument from being disturbed by any snags (such as any sharp edges or protruding points).

Referring now to fig. 2B, in certain embodiments, the system 10 may comprise an instrument delivery device 64 that may be removably coupled to the proximal end 20 of the CATHETER adapter 12. in certain embodiments, the instrument delivery device 64 may be coupled to the proximal end 20 of the CATHETER adapter 12 either directly OR via an EXTENSION device 56 OR via a needleless connector 40 (such as shown in fig. 1E.) in further detail, in certain embodiments, the instrument delivery device 64 may be coupled directly to the proximal connector 60 of the EXTENSION device 56 OR directly to the needleless connector 40. in certain embodiments, the instrument delivery device 64 may comprise an instrument 66 that may be configured to be advanced distally THROUGH the blood control valve 44 and into OR THROUGH the PIVC 14. U.S. patent No. 9,750,446 entitled "system and method for performing venotomy THROUGH a peripheral IV CATHETER" (SYSTEMSAND METHODS FOR PH L ebottomy CATHETER A PERIPHERA L IV CATHETER) filed on 2/4 of 2013 and U.S. patent No. 9,750,446 entitled "system and method for performing venotomy THROUGH a peripheral CATHETER" (SYSTEMSAND METHODS FOR PH L ebony CATHETER and method for receiving a PROBE OR INTRAVENOUS CATHETER EXTENSION "(ex vivo) filed on 7/7 of 2017 may be incorporated by reference to the non-U.S. medical collection device No. instruments 62/534,552, which is incorporated by reference herein.

Referring now to fig. 2C, in certain embodiments, the distal connector 58 may include a cannula 68 that penetrates the blood control valve 44 in response to the distal connector 58 being coupled to the proximal end 20 of the catheter adapter 12. In some embodiments, cannula 68 may be blunt. In certain embodiments, the cannula 68 may be constructed of plastic or metal (such as, for example, steel). In certain embodiments, the cannula 68 may contain one or more irrigation windows 72 through which fluid may travel.

Referring now to fig. 2D, in certain embodiments, the distal connector 58 may comprise a male luer connector, which may comprise an extension 70 or modified tip. In certain embodiments, the extension 70 may penetrate the blood control valve 44 in response to the distal connector 58 being coupled to the proximal end 20 of the catheter adapter 12. In certain embodiments, the extension 70 may contain one or more flushing windows 72, and fluid may travel through the flushing windows 72. In certain embodiments, cannula 68 of fig. 2C and extension 70 of fig. 2D may each correspond to an actuator of a blood control valve. In certain embodiments, the lumen 46 of the catheter adapter 12 may not contain an actuator for a blood control valve other than the cannula 68 or the extension 70. In further detail, in certain embodiments, the lumen 46 of the catheter adapter 12 may not contain an actuator of the blood control valve when the distal connector 58 is not coupled to the catheter adapter 12. It should be understood that in certain embodiments, the male luer connector with cannula 68 or extension 70 may be part of a particular instrument, distal connector 58, or needleless connector 40.

Referring now to fig. 2E-2F, in certain embodiments, the lumen 46 of the catheter adapter 12 may contain an actuator 76 that may penetrate the blood control valve 44 in response to the distal connector 58 being coupled to the proximal end 20 of the catheter adapter 12. In certain embodiments, actuator 76 may be a separate element and/or not coupled with distal connector 58 or needleless connector 40. In certain embodiments, actuator 76 may be positioned within lumen 46 and may not penetrate blood control valve 44 when extension set 56 is removed from catheter adapter 12. In certain embodiments, the actuator 76 may not be present when the distal connector 58 comprises a male luer connector having the extension 70 or cannula 68. In certain embodiments, the actuator 76 may contain one or more flushing windows 72, and fluid may travel through the flushing windows 72.

In certain embodiments, system 10 may include one or more devices that return actuator 76 to a non-actuated position, enabling blood control valve 44 to close and seal. For example, blood control valve 44 may provide a restoring force to move actuator 76 proximally to the unactuated position.

As another example, the lumen 46 of the catheter adapter 12 may contain a spring 74 and an actuator 76. In certain embodiments, the actuator 76 may be attached to the spring 74. In certain embodiments, when the male luer connector is connected to catheter adapter 12, actuator 76 may be pushed distally and may open the slit of blood control valve 44, allowing fluid infusion or blood withdrawal. In certain embodiments, the spring 74 may be unactuated or compressed in response to contact from the male luer connector. In certain embodiments, when the male luer connector is disconnected from the catheter adapter 12, the spring 74 may be activated and may push the actuator 76 back in the proximal direction, thereby closing the slit of the blood control valve 44 and sealing the fluid path. In certain embodiments, the distal connector 58 of the extension set 56 may comprise a male luer connector. In certain embodiments, needleless connector 40 may include a male luer connector. In certain embodiments, a particular instrument (e.g., instrument 66) may include a male luer connector.

All examples and conditional language recited herein are intended for pedagogical purposes to aid the reader in understanding the invention and the concepts contributed by the inventor to furthering the art, and are to be construed as being without limitation to such specifically recited examples and conditions. Although the embodiments of the present invention have been described in detail, it should be understood that various changes, substitutions, and alterations can be made hereto without departing from the spirit and scope of the invention.

Claims

1. A system for facilitating delivery of an instrument through a peripheral intravenous catheter, the system comprising:

a catheter adapter having a proximal end, a distal end, and a lumen extending therethrough, the catheter adapter having a side port;

an extension tube extending from the side port;

a blood control valve disposed in the lumen of the catheter adapter; and

a peripheral intravenous catheter extending distally from the catheter adapter.

2. The system of claim 1, wherein the blood control valve is disposed proximal to the side port, wherein the blood control valve does not permit ventilation.

3. The system of claim 1, wherein the blood control valve is disposed distal to the side port, wherein the blood control valve permits ventilation.

4. The system of claim 1, wherein the blood control valve permits ventilation.

5. The system of claim 4, further comprising:

a Y-shaped adapter coupled to a proximal end of the extension tube, the Y-shaped adapter having a first port and a second port;

a needleless connector coupled to the first port; and

a needleless connector coupled to the second port.

6. The system of claim 1, further comprising a cap coupled to a proximal end of the catheter adapter.

7. The system of claim 1, further comprising a needle-less connector coupled to a proximal end of the catheter adapter.

8. The system of claim 1, further comprising an extension device, the extension device comprising:

a distal connector coupled to a proximal end of the catheter adapter, wherein the distal connector includes a cannula that penetrates the blood control valve in response to the distal connector being coupled to the proximal end of the catheter adapter,

a proximal connector; and

a pipe provided between the distal connector and the proximal connector.

9. The system of claim 8, wherein the proximal connector comprises a needleless connector.

10. The system of claim 8, wherein the cannula is blunt and is constructed of plastic or steel.

11. The system of claim 8, wherein the cannula comprises a plurality of irrigation windows.

12. The system of claim 1, further comprising an extension device coupled to a proximal end of the catheter adapter, the extension device comprising:

a distal connector coupled to a proximal end of the catheter adapter, wherein the distal connector comprises a male luer connector;

a proximal connector; and

a pipe provided between the distal connector and the proximal connector.

13. The system of claim 12, wherein the proximal connector comprises a needleless connector.

14. The system of claim 12, wherein the lumen of the catheter adapter contains an actuator configured to penetrate the blood control valve in response to the distal connector being coupled to the proximal end of the catheter adapter.

15. The system of claim 14, wherein the actuator comprises an extension of the male luer connector.

16. The system of claim 12, further comprising an instrument delivery device coupled to a proximal end of the catheter adapter, wherein the instrument delivery device comprises an instrument configured to be advanced distally through the blood control valve and the peripheral intravenous catheter, wherein the instrument comprises: a guide wire; a probe with a sensor; tubing for fluid infusion or blood withdrawal; or a lamp tube for disinfection.

17. The system of claim 1, further comprising a needle assembly removably coupled to the proximal end of the catheter adapter, an introducer needle of the needle assembly extending through the blood control valve.

18. The system of claim 1, wherein the proximal end of the catheter adapter comprises a luer adapter.

19. The system of claim 1, wherein the proximal end of the catheter adapter comprises a non-luer adapter.

20. The system of claim 1, wherein a distal portion of the lumen narrows to provide a guide feature.